All documents/book always reference that LSP will be broken if you summarize PE Loopback addresses used as update-source in MP-BGP sessions. I would like to run by this forum one scenario and see what you guys have to say.
Let's say you're running OSPF as your backbone IGP, which is not far from reality :-)
Let's say you have egress PE router with loopback IP address 10.0.0.1/32
At some point in your backbone you aggregate this lookback IP to 10.0.0.0/24. Let's see what happens now...Aggregating router will create a 10.0.0.0/24 route pointing to Null interface, this route will be considered connected and thus advtertised with implicit-null label value. This will cause PHP bevahior and a premature exposure of VPN label, which will of course break the LSP.
Now what if you configure "no discard-route internal" under the OSPF configuration on the aggregating router?
In this case Null pointing route will not be created, so there will be no implicit-null value label advertised for 10.0.0.0/24. Will LSP be broken in this case?
This scenario is not applicable for ISIS which to my knowledge does not have ability to suppress the installation of Null route at aggregation point.
Question: Have the phone connected and can ring out-but no sound coming from the handset - analog home phone - phone makes connection and pick up at the other end is ok. Can you help?
Question: Have the phone connected and can ring out-but no sound coming from the handset - analog home phone - phone makes connection and pick up at the other end is ok. Can you help?Answer
iPXE boot in ASR9K
This document applies to NCS5500 and ASR9000 routers and has been verified as such.
traditional ECMP or equal cost multipath loadbalances traffic over a number of available paths towards a destination. When one path fails, the traffic gets r...